Detcon IR-700 SIL 2 Safety Manual User Manual
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PRODUCT REPAIR
The IR-700 is partially field repairable. Follow the IR-700 instruction manual for proper guidance in executing the
allowable field repair/replacement actions. No firmware changes are permitted or authorized. All failures detected by the
transmitter diagnostics or by the Proof Test must be reported.
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OPERATING, ENVIRONMENTAL, AND PERFORMANCE SPECIFICATIONS
The Safety-Certified IR-700 product versions fully comply with, and must be operated in accordance with the functional,
environmental, and performance specifications provided in the IR-700 instruction manual. A 24 hour mean time to repair
should be assumed for safety availability calculations. All IR-700 diagnostics have a maximum 2 hour test interval.
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SPARE PARTS
Refer to “Spare Parts” in the IR-700 instruction manual. Safety Certification is based on having a sufficient number of
spares to achieve a 24 hour mean time to repair.
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CERTIFICATION AND FAILURE RATE DATA
All Safety-Certified IR-700 models are certified compliant to:
IEC61508:2010
SIL 2 Certified
PFDavg @ 1 year is 5.0% of the SIL2 range.
Safe Failure Fraction (SFF):
93.2%
Safety Accuracy:
+/-20% FS Range
Safety Response Time for % LEL Methane:
< 60 seconds to T90
Product Life:
10 years, based on manufacturer data.
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CERTIFICATIONS
cCSAus, ATEX, CE Marking (Refer to the Model IR-700 Instruction Manual for details).
FMEDA Report available.
For complete information regarding performance, installation, operation, maintenance and specifications of Model IR-
700, refer to the instruction manual Document #3169.
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REVISION LOG
Revision
Date
Changes made
Approval
1.0
7/10/13
Initial Release
RJM
2.0
8/20/13
Changed diagnostic time to 2 hours, added requirement for
minimum load on 4-20mA output
RJM
3.0
8/27/13
Removed reference to DM-700 in section 8
RJM
4.0
8/28/13
Removed redundant fault monitoring constraint
RJM